TY - JOUR
T1 - Effects of lifetime ethanol consumption on postural control
T2 - A computerized dynamic posturography study
AU - Ahmad, Saad
AU - Rohrbaugh, John W.
AU - Anokhin, Andrey P.
AU - Sirevaag, Erik J.
AU - Goebel, Joel A.
PY - 2002
Y1 - 2002
N2 - The relationship between lifetime alcohol consumption and postural control was investigated in 35 subjects with no clinically-detectable neurologic abnormalities, using computerized dynamic posturography (CDP) procedures. The estimated total number of lifetime alcoholic drinks was positively correlated with anteroposterior sway spectral power within the 2-4 Hz and 4-6 Hz frequency bands, in three Sensory Organization Test (SOT) conditions: eyes closed with stable support surface (SOT 2), eyes open with sway-referenced support (SOT 4), and eyes closed with sway-referenced support (SOT 5). All correlations remained significant after controlling for subject age, and were increased after excluding nine drug-abusing subjects. In contrast to the strong findings for frequency-based measures, no correlation was observed using conventional amplitude-based sway measures. These results suggest that 1) alcohol consumption compromises postural control in an exposure-dependent manner, and 2) sway frequency analysis reveals pathological processes not manifested in conventional CDP measures of sway amplitude.
AB - The relationship between lifetime alcohol consumption and postural control was investigated in 35 subjects with no clinically-detectable neurologic abnormalities, using computerized dynamic posturography (CDP) procedures. The estimated total number of lifetime alcoholic drinks was positively correlated with anteroposterior sway spectral power within the 2-4 Hz and 4-6 Hz frequency bands, in three Sensory Organization Test (SOT) conditions: eyes closed with stable support surface (SOT 2), eyes open with sway-referenced support (SOT 4), and eyes closed with sway-referenced support (SOT 5). All correlations remained significant after controlling for subject age, and were increased after excluding nine drug-abusing subjects. In contrast to the strong findings for frequency-based measures, no correlation was observed using conventional amplitude-based sway measures. These results suggest that 1) alcohol consumption compromises postural control in an exposure-dependent manner, and 2) sway frequency analysis reveals pathological processes not manifested in conventional CDP measures of sway amplitude.
UR - http://www.scopus.com/inward/record.url?scp=0038284375&partnerID=8YFLogxK
M3 - Article
C2 - 12515892
AN - SCOPUS:0038284375
SN - 0957-4271
VL - 12
SP - 53
EP - 64
JO - Journal of Vestibular Research: Equilibrium and Orientation
JF - Journal of Vestibular Research: Equilibrium and Orientation
IS - 1
ER -